Gyratory crusher



Se t. 21 1925.

E. B. SYMONS GYRATORY CRUSHER .F iled May 17, 1924 .2 Sheets-Sheet 1Sept. 21,1926. 1,600,189

. E. B. SYMONS.

GYRATORY CRUSHER Fi1ed-May 1'7 1924 I 2 Sheets-Sheet 2 7 machine;

Patented Sept. 21, 1926.

UNITED STATES PATENT OFFICE.

EDGAR B. SYMONS, OF HOLLYWOOD, CALIFORNIA, ABSIGNOB TO BYIOIlS BROTHERS,COMPANY, OF BAIEBBFIILD,OALIIORNIA, A CORPORATION OF SOUTH DAKOTA.

' (rm-roar enema.

Application ma a, 11;

My invention relates to improvements in a gyratory stone crushingmachine, and has for one object to providean improved lubrieating meansfor such a crusher. Other objects will appear from time to t me in thecourse of the specification and claims.

I illustrate my invention more or less d1- agrammatically in theaccompanymg drawin wherein I igure 1 is a vertical section through theFigure 2 is a similar section of a modified form.

Like parts are illustrated like characters throughout the specl cationand claims.

A is a bed uponwhich rests a frame A outwardly flanged as at A forstiffness and provided at its top with a reinforci flange A". .A, A areradial arms exten ng -.1nwardly from the flange A to support a rigidbearing sleeve A. One s1de of t 1 sleeve carries a gear case A fromWhlCll rojects laterally the horizontal sleeve A. he sleeve A terminatesin a gear case A at its upper end, which is formed by a flange Aprojecting outwardly from the base of the sleeve A", and is closed bythe bearing cap A, there being an oil tight pac 1 A between this cap andthe top of the s eeve A. The sleeve A is provided with a tightly fittinglining A. p

B is an eccentric sleeve mounted for rotation in the beari g and havingan outer babbitted bearing It is flanged as at B and has an annularballbearing B resting upon the upper flange of the lining A to supportthe downward thrust-caused by the weight of the eccentric and itsassociated arts. B is a ring gear secured to the unerside of the flangeB surrounding the u per end of the hearing A and located wit in the gearcase'A. 4 is a bevel pinion 1n mesh with the gear B mounted on the driveshaft B.

The bearing cap A is formed with an up-\ per spherical hearin surfacewhich sup- 3| a segmental bal InemberC ha a abhitt facing C to engagethe ;her1cel surfem. C -is a ci end or cons moun upon and integralwithsaid segmental ball member, and is provided with a shirt 0 extendingdownwardly low the I s bearing 1924. Serial Io. 718,877.

spherical bearing surface, and provided immediately below the bearinggoverned by the standard with a ,flan'ge C, ,havin a spherical surfaceconcentric with the sp er-- engaging an oil packical bearing surface,'ing ring C in the lower or outer spherical surface of the cap A", whichsurface is also concentric with the ball bearing. G is a shaft mountedin the cone and extending down through the. cap A", fit with the Babbittsurface (3 on the inside of the eccentric sleeve B. I

D is a conical mantle of manganese steel or other suitable materialcarried on the cone, and secured, for examplefloy the conic plug D andthe nut D".

E is a conical ider having a cylindrical flange E adapu to penetrate andbe verticall adjustable in relation to the .frame A, or example b thefixed adjusting screws E and the a justing nuts E E.

F is a pump housing closing the lower end of the sleeve A. F is agearpump carried thereby'and mounted on a shaft F. F is a crank discrigidly attached to the gear pumps-Jud having an aperture adapted to begr 5 w "b a crank pin F which is thrust downwar y-"toward the disc bymeans of a spring F In arranging this part of the apparatus the plug Fis screw threaded into a hole in the end of the eccentric and a collaron the cr pin F rests againstthis plug to preventthe ring F from throwmgthe plug outtoo ar. The relative position of plug and collar is suchthat the crank in can g" down far enou h to engage the ole'in 1 eradisc. T 'ng the position shown-in .Fi put in hrthe era pin rides on thedisc, the r bein under compression. As n as notatio begins, theeccentric rotates til the 1 :1: pin is in line with the hole in 'e dies,when the ring forces thepin into the hole, and from then on the crankpin is in the hele in the er disc. F is an oil pips exteng from a ointabove the em ot the chamber F trough the condnit F to the mm; Oil isdischarged thence through t e conduit 1*, r e F and centiuit i to theannnlarconuit F cut in t e making a close 1, when the crank disc isbeersurface of the ca chamber F from the ball and socket hearing, whence itdrains through the conduit F into the gear chamber, and thus back to theoil well. Some of this oil will pass through the conduit F to lubricatethe bearing B. F is an oil duct extending, as shown-in Figure 1, fromthe oil conduit F to the chamber beneath the eccentric and the maincrusher shaft in which is located the crank disc F Oil passes throughthis duct F to fill this chamber and in response to the action of thepump F Since the cross sectional area of the passage F is verymaterially smaller than the cross sectiona area of the conduitF", itreceives small proportion of the delivery of the pump, but sufficient tomaintain the feed chamber full of oil and to force oil u wardly betweenthe main crusher shaft an the eccentric B, and between the eccentric Band the sleeve or bearing A n The oil which thus asses upwardl about thecrusher shaft an eccentric finds'its way either over the top of theecball or head. 'These pins are irregularly spaced to permit the partsto be assembled only in a certain predetermined angular relation; One ofthe pins 0 is hollow and is used to continue the conduit or pipe Fthrough which oil is fed into the bearing surface between the ball andits socket. The oil path is through the pipe F", the passage 0, the pin0 and the passageO to the surface of the hall where it discharges into arelatively open space 0 which communicates with an annular clear aroundthe ball face. Thus oil is fe under pressure to this channel all the wayaround the spherical hearing, and as the ball oscillates or gyrates theoil will work both outwardly "and inwardly to lubricate the opposedspherical surfaces. In the modified form of Figure 2, the oil dischargedinto the annular sump P is fed through the passage P to oil the countershaft bearing, flowing thence to the inain oil well.

It will be relaize d that while I have illustrated afullyoperativedevice, nevertheless many changes might be made in size,roportion and dispositionbf parts and in variations ofdetail andarrangement of corn. duits without departing from the spirit of myinvention, and I wish my description and drawings to-be taken as in abroad sense groove 0 extending illustrative, rather than as a limitationto the specific device shown.

The use and operation of my invention are as follows:

. When the crusher is set up as shown in the drawings, the drive shaft Bis rotated, causingthe eccentrically apertured sleeve B to gyrate orwabble, carrying with it the crushing shaft and gyrating the crusherhead upon its large spherical bearing. The material to be crushed is fedin from above, falling freely under the influence of gravity into thecrushing space between the concave and cone. The packing ringimmediately beneath the apron and extending out from the face of thecone prevents any escape of oil. However, there is practically notendency of the oil to escape, since it would have to flow upwardly,there being no rotating 'or moving parts likely to pump oil out throughany 0 the oil packings.

In order to obtain a proper circulation of oil through the system andproperly tolubricate the bearing parts, I provide a main oil reservoiror sump, whence a filter and a passage leads to a rotary pump. The pumis rotated in response tothe rotation of t e eccentric sleeve, the discF being engaged by the crank pin F which is yieldingly thrust downwardlyfrom the eccentric and into the disc. l

The oil thus positivel through the conduits F, I spherical bearingsurface.

pumped passes upwardly to the In the form shown in Figure 1 it isconducted about the spherical surface b means of an annular oil duct. Asthe ead gyrates back and forth some of the oil escapes to thesurrounding annular sum downwardly through t e central aperture of thesupporting cap. In either case it passes to the gear case whither theassage leads from the annular sump. he passage F leads some of the, oilfrom the gear case to lubricate the bearing for the shaft B.

In the form shown in Figure 2 the oil passesto a relatively extendedpocket in the lower spherical bearing surface which is of such size inrelation to the 'gyration of the head that a circumferential oil assa ein the lower bearing surface of the cad is always in opposition'thereto.The oil which escapes to the sump P instead of passing to the gear casepasses by way of the passage P to. the bearing for the shaft B andthence flows to the main oil sump.

Oil is pumped upwardly between shaft and sleeve and between sleeve andhearing by the positive action of the pump. This upward pumping actionis effected through the passage F which admits oil to the chamber aboutthe crank disc, whence it moves upwardly in response to the action ofthe pump and escapes to the gear case and some passes 'either throughthe ball bearing B or over the top of the concentric sleeve. Since thepassage F is of substantially smaller cross sectional area than thepassage F the division of oil thus effected is thus insufiicient toaffect the general lubricating action of the spherical bearing surfaces.

I claim:

1. The combination with a rotating sleeve and cylindrical bearingtherefor of a pump and means interposed between the pump and the sleevefor rotating it responsive to the rotation of the sleeve, said meanscomprising a crank disc associated with thepump, an opening in the discand a spring pressed plunger in the sleeve adapted to be thrown in theopening of the disc to drive it when the sleeve rotates.

2. In a crushing machine, a housing including a gear case having acircular top opening, a circular closure therefor having an upwardlyextending bearing surface, the wall of the housing and the closurehaving lubricating passages formed therewithin, pins unequally spacedinterposed between the closure and housing, one of said pins beinghollowand adapted to complete the connect-ion between said oil passages.

3. In a crushing machine, a bearing shaft, an eccentric mounted forrotation thereby to gyrate it, a bearing therefor, a cap closing thelower end of the bearing, an oil pump contained within the cap, andmeans interposed between the pump and the eccentric for driving the pumpdirectly from the eccentric, comprisin an apertured crank disc, a springpressed rive pin mounted in the eccentric and adapted to bethrust by thespring into engagement with the aperture in the disc.

Y 4. Ina gyratory crusher, a crushing head having a spherical bearingsurface, a support therefor, having a horizontall extended sphericalbearing surface, sai H support bein centrally apertured, a shaftdepending rom said head, a cylindrical bearin and a cylindrical,eccentricall aperture sleeve interposed between said bearing and saidshaft, and means for rotating said sleeve, an oil sump and means forpumping oil therefrom upwardly to said spherical bearing surfaces, andupwardly between shaft and sleeve, and between sleeve and bearing,comprising a rotary pump, a crank disc therefor, an operative connectionbeing spherical bearing surface, said sup ort being centrally apertured,a shaft depen ing from said head, an eccentricall apertured sleevepositioned about said s aft, and a bearing therefor, means for rotatingsaid sleeve, an oil reservoir, and means for pumping oil therefromupwardly between bearing and sleeve and between sleeve and shaft, andupwardly to said spherical bearing surfaces, the lower spherical bearingsurface being surrounded by an annular closed sump, the crushing headbeing adapted to seal the top of said sump, and a return connectionbetween said sump and said oil reservoir.

6. In a gyratory crusher, a crushing hea having a spherical bearingsurface, a support therefor, having a horizontall extending sphericalbearing surface, ,sai support being centrally apertured, a shaftdependin from said head, an eccentrically aperture sleeve positionedabout said shaft, and a bearing-therefor, means for rotating saidsleeve, comprising a gear mounted on said sleeve, a drive shaft andmeans for rotating it, and a pinion thereon in mesh with the gear onsaid sleeve,,an oil reservoir, and

,means for pumping oil therefrom upwardly to said spherical bearingsurfaces, the lower spherical bearing surface being surrounded by anannular closed sump, the crushing head bein sump, an a return connectionbetween said sump and said oil reservoir, adapted to lubricate thebearings of said drive shaft.

Signed at Chicago, countyof Cook and State of Illinois, this 14th day ofMay, 1924.

EDGAR B. sYMoNs.

adapted to seal the top of said

